A polymorphonuclear neutrophil (PMN):

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#Question id: 19380

#SCPH01 Biochemistry

Glyphosate results primarily from starving the cells of aromatic amino acids, which leads to

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#Question id: 1708

#SCPH05 I Biotechnology

When antigen reaches a lymph node in a primed animal:

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#Question id: 4921

#SCPH12 I Genetics

Shell coiling in snail determine by genetic maternal effect. S for dextral and s for sinistral.  Following cross allowed between

Male	Female	Progeny   (Genotype)
Dextral	sinistral	Dextral (K1)
Dextral	Sinistral	Sinistral (K2)
Sinistral	sinistral	Dextral (K3)
Dextral	Dextral	Sinistral (K4)

Which of the following progeny not have SS genotype?

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#Question id: 1435

#SCPH28 | Zoology

Direct-acting carcinogens are those that:

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#Question id: 13062

#SCPH05 I Biotechnology

Precision will be reduced, but yield will be increased

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

A restriction enzyme cleaves a circular plasmid vector to produce fragments : 1kb, 0.3kb, 2kb, 1kb and 0.3kb. How many bands will be visible on agarose gel?